CN107255457A - A kind of measurement apparatus and method of ring color and vein and pattern - Google Patents
A kind of measurement apparatus and method of ring color and vein and pattern Download PDFInfo
- Publication number
- CN107255457A CN107255457A CN201710614330.3A CN201710614330A CN107255457A CN 107255457 A CN107255457 A CN 107255457A CN 201710614330 A CN201710614330 A CN 201710614330A CN 107255457 A CN107255457 A CN 107255457A
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- Prior art keywords
- ring
- computer
- turntable
- vein
- camera
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
- G01B11/0608—Height gauges
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses the measurement apparatus and method of a kind of ring color and vein and pattern, including computer, computer connects projecting apparatus, camera and turntable, turntable is placed in the front of projecting apparatus and camera, tested ring is placed with turntable, tested ring is driven to rotate by turntable, and ring profile and picture on surface are acquired by projecting apparatus and camera, go out the pattern of ring finally by computer drawing, the concave-convex surface realized based on ring is uneven, the complicated revolving body three-D profile of shapes textures it is quick, efficiently, it is accurate to rebuild, the measurement apparatus is applied to the measurement of ring, it is equally applicable to the measurement of other revolution type objects.
Description
Technical field
The invention belongs to optical three-dimensional contour fields of measurement, and in particular to the measurement dress of a kind of ring color and vein and pattern
Put and method.
Background technology
In the numerous areas such as machining, medical diagnosis and machine vision, people need to obtain the three-dimensional of object
Profile information.Three-D profile information that is how quick, accurate and easily obtaining measured object becomes one in modern surveying field
Individual important research direction.Current existing measuring three-dimensional profile method is substantially relatively simple for surface configuration, texture
Planar object, and, shape rough revolution type objects complicated for this surface color of ring, texture, traditional is flat
Face measuring three-dimensional profile method is not applicable directly.
For the surface tri-dimensional profile of object, the measuring method that can be used at present mainly has three coordinate measuring machine and optics
Measuring three-dimensional morphology technology.Three coordinate measuring machine, due to its own contact and the principle of spot measurement, measures cumbersome and process
Slowly, it is not suitable for the surface profile measurement of ring；Optical 3-dimensional topography mainly includes laser triangulation, binocular vision
Feel method and projecting fringe measurement method.Wherein, binocular vision is because the demand of pixel matching on ring surface, it is necessary to label will
Point, therefore method is complicated, it is not easy to operate；Further, since the texture such as ring surface configuration, color is complicated, optical reflective characteristics are poor,
The tonal distortion of projected fringe is easily caused, it is higher for testee surface requirements, so such method is not suitable for guarding against yet
Refer to the surface profile measurement of this kind of revolving body.And laser triangulation is due to the principle features of itself, be particularly suitable for use in surface configuration,
Color and vein is complicated, the measuring three-dimensional profile of the measured object of optical reflective characteristics difference.But it is tested for this kind of revolving body of ring
Thing, common laser triangulation system can not be directly applicable.
The content of the invention
It is an object of the invention to overcome above-mentioned deficiency, there is provided measurement apparatus and the side of a kind of ring color and vein and pattern
Method, can realize the revolving body three-D profile that concave-convex surface based on ring is uneven, shapes textures are complicated it is quick, efficient,
It is accurate to rebuild.
In order to achieve the above object, a kind of measurement apparatus of ring color and vein and pattern, including computer, computer connects
Projecting apparatus, camera and turntable are connect, turntable, which is placed on the front of projecting apparatus and camera, turntable, is placed with tested ring；
The computer is used for after the information of acquired projections instrument and camera, calculates every under each angle using gradient gravity model appoach
The laser-knife center of bar light, and the profile information figure for obtaining tested ring is calculated based on laser triangulation, finally add correspondence position
The final three-D profile reconstruction for realizing ring after the color and vein information put.
The camera uses industrial CCD camera.
The tested ring is placed on support frame, and support frame is placed on a spinstand.
A kind of method of work of the measurement apparatus of ring color and vein and pattern, comprises the following steps：
Step one, tested ring is placed on a spinstand；
Step 2, closes projecting apparatus, opens camera, controls turntable at the uniform velocity to rotate by computer, computer control phase
Machine continuous acquisition is tested the color and vein picture on ring surface, and these pictures are back into computer；
Step 3, turntable zero, opens projector, and an a branch of picture is projected to tested ring measured surface using projecting apparatus
The wide light of element；
Step 4, controls turntable at the uniform velocity to rotate by computer, and computer control camera continuous acquisition ring surface is adjusted
The projection line of the linear light source of system, and these pictures are back to computer；
Step 5, computer is calculated according to the pixel-shift of the projection line of linear light source and the geometrical relationship of object height
By the elevation information of survey time turns；
Step 6, computer is optimized to measurement result, and adds corresponding color and vein information, realizes that ring is three-dimensional
The reconstruction of profile.
In the step one, tested ring is placed on support frame, and support frame is fixed on the centre of gyration of turntable.
In the step 6, computer is optimized to measurement result to be calculated under each angle using gradient gravity model appoach
The laser-knife center of every light, and the profile information figure for obtaining tested ring is calculated based on laser triangulation.
Compared with prior art, the present apparatus drives tested ring to rotate by turntable, and passes through projecting apparatus and camera pair
Ring profile and picture on surface are acquired, and the pattern of ring is gone out finally by computer drawing, is realized based on ring
Quick, efficient, the accurate reconstruction for the revolving body three-D profile that concave-convex surface is uneven, shapes textures are complicated, the measurement apparatus is fitted
For the measurement of ring, the measurement of other revolution type objects is equally applicable to.
The measurement process of the present invention is divided into color and vein measurement and profile geological information measures two processes, utilizes projecting apparatus
Replace linear laser to project a branch of finishing tool on tested ring surface, by controlling turntable to drive ring to rotate, realize ring
The color and vein of finger and the 360 of profile ° of universe measurements.
Brief description of the drawings
Fig. 1 is the structural representation of apparatus of the present invention；
Fig. 2 is the geometrical relationship figure of finishing tool pixel difference and testee height in the present invention；
Fig. 3 is measurement procedure figure of the invention；
Wherein 1, computer；2nd, camera；3rd, projecting apparatus；4th, turntable；5th, it is tested ring.
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings.
Referring to Fig. 1, a kind of measurement apparatus of ring color and vein and pattern, including computer 1, the connection projection of computer 1
Instrument 3, camera 2 and turntable 4, turntable 4, which is placed on the front of projecting apparatus 3 and camera 2, turntable 4, is placed with tested ring 5；
Computer 1 is used for after the information of acquired projections instrument 3 and camera 2, and every light is calculated under each angle using gradient gravity model appoach
Laser-knife center, and the profile information figure for obtaining tested ring is calculated based on laser triangulation, finally add the color of correspondence position
The final three-D profile reconstruction for realizing ring after texture information.
It is preferred that, camera 2 uses industrial CCD camera.Tested ring 5 is placed on support frame, and support frame is placed on rotation
On platform 4.
Referring to Fig. 2 and Fig. 3, a kind of method of work of the measurement apparatus of ring color and vein and pattern comprises the following steps：
Step one, tested ring 5 is placed on support frame, support frame is fixed on the centre of gyration of turntable 4；
Step 2, closes projecting apparatus 3, opens camera 2, controls turntable 4 at the uniform velocity to rotate by computer 1, computer 1 is controlled
The continuous acquisition of camera 2 processed is tested the color and vein picture on the surface of ring 5, and these pictures are back into computer 1；
Step 3, turntable 4 is zeroed, and opens projector 3, is projected using projecting apparatus 3 to the tested measured surface of ring 5 a branch of
The wide light of one pixel；
Step 4, controls turntable 4 at the uniform velocity to rotate by computer 1, the control continuous acquisition ring watch of camera 2 of computer 1
The projection line of the linear light source of face modulation, and these pictures are back to computer 1；
Step 5, computer 1 is calculated according to the pixel-shift of the projection line of linear light source and the geometrical relationship of object height
By the elevation information of survey time turns；
Step 6, computer 1 is optimized to measurement result calculates under each angle every using gradient gravity model appoach
The laser-knife center of light, and the profile information figure for obtaining tested ring is calculated based on laser triangulation, and add corresponding color
Texture information, realizes the reconstruction of ring three-D profile.
Claims (6)
1. the measurement apparatus of a kind of ring color and vein and pattern, it is characterised in that including computer (1), computer (1) connection
Projecting apparatus (3), camera (2) and turntable (4), turntable (4) are placed in the front of projecting apparatus (3) and camera (2), turntable (4)
On be placed with tested ring (5)；
The computer (1) is used for after the information of acquired projections instrument (3) and camera (2), and each angle is calculated using gradient gravity model appoach
The laser-knife center of every light under degree, and the profile information figure for obtaining tested ring is calculated based on laser triangulation, finally add
The final three-D profile reconstruction for realizing ring after the color and vein information of correspondence position.
2. the measurement apparatus of a kind of ring color and vein according to claim 1 and pattern, it is characterised in that the camera
(2) industrial CCD camera is used.
3. the measurement apparatus of a kind of ring color and vein according to claim 1 and pattern, it is characterised in that described tested
Ring (5) is placed on support frame, and support frame is placed on turntable (4).
4. a kind of method of work of the measurement apparatus of ring color and vein and pattern described in claim 1, it is characterised in that bag
Include following steps：
Step one, tested ring (5) is placed on turntable (4)；
Step 2, closes projecting apparatus (3), opens camera (2), controls turntable (4) at the uniform velocity to rotate by computer (1), calculates
Machine (1) control camera (2) continuous acquisition is tested the color and vein picture on ring (5) surface, and these pictures are back into calculating
Machine (1)；
Step 3, turntable (4) zero, opens projector (3), is projected using projecting apparatus (3) to tested ring (5) measured surface
The wide light of an a branch of pixel；
Step 4, controls turntable (4) at the uniform velocity to rotate by computer (1), and computer (1) control camera (2) continuous acquisition is guarded against
Refer to the projection line of the linear light source of surface modulation, and these pictures are back to computer (1)；
Step 5, computer (1) calculates quilt according to the pixel-shift of the projection line of linear light source and the geometrical relationship of object height
The elevation information of survey time turns；
Step 6, computer (1) is optimized to measurement result, and adds corresponding color and vein information, realizes that ring is three-dimensional
The reconstruction of profile.
5. the method for work of the measurement apparatus of a kind of ring color and vein according to claim 4 and pattern, its feature exists
In in the step one, tested ring (5) is placed on support frame, and support frame is fixed on the centre of gyration of turntable (4).
6. the method for work of the measurement apparatus of a kind of ring color and vein according to claim 4 and pattern, its feature exists
In in the step 6, computer (1) is optimized to measurement result calculates every under each angle using gradient gravity model appoach
The laser-knife center of bar light, and the profile information figure for obtaining tested ring is calculated based on laser triangulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710614330.3A CN107255457A (en) | 2017-07-25 | 2017-07-25 | A kind of measurement apparatus and method of ring color and vein and pattern |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710614330.3A CN107255457A (en) | 2017-07-25 | 2017-07-25 | A kind of measurement apparatus and method of ring color and vein and pattern |
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| CN107255457A true CN107255457A (en) | 2017-10-17 |
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| CN201710614330.3A Pending CN107255457A (en) | 2017-07-25 | 2017-07-25 | A kind of measurement apparatus and method of ring color and vein and pattern |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110966953A (en) * | 2018-09-29 | 2020-04-07 | 中国航发商用航空发动机有限责任公司 | Method for detecting surface profile of object |
| CN111947575A (en) * | 2020-08-12 | 2020-11-17 | 天津中德应用技术大学 | Multifunctional detection device and detection method based on laser triangulation |
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| CN1474161A (en) * | 2003-08-12 | 2004-02-11 | 西北大学 | Method and device for determining three-dimensional object surface coordinate and color |
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| CN105953747A (en) * | 2016-06-07 | 2016-09-21 | 杭州电子科技大学 | Structured light projection full view three-dimensional imaging system and method |
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2017
- 2017-07-25 CN CN201710614330.3A patent/CN107255457A/en active Pending
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| CN202018277U (en) * | 2010-12-29 | 2011-10-26 | 中国船舶重工集团公司第七一一研究所 | Rotary three-dimensional scanning system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110966953A (en) * | 2018-09-29 | 2020-04-07 | 中国航发商用航空发动机有限责任公司 | Method for detecting surface profile of object |
| CN111947575A (en) * | 2020-08-12 | 2020-11-17 | 天津中德应用技术大学 | Multifunctional detection device and detection method based on laser triangulation |
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Application publication date: 20171017 |